diff --git a/game/campaignloader/mizcampaignloader.py b/game/campaignloader/mizcampaignloader.py
index ee989ed2..b0139058 100644
--- a/game/campaignloader/mizcampaignloader.py
+++ b/game/campaignloader/mizcampaignloader.py
@@ -13,14 +13,13 @@ from dcs.planes import F_15C
 from dcs.ships import HandyWind, LHA_Tarawa, Stennis, USS_Arleigh_Burke_IIa
 from dcs.statics import Fortification, Warehouse
 from dcs.terrain import Airport
+from dcs.triggers import TriggerZoneCircular
 from dcs.unitgroup import PlaneGroup, ShipGroup, StaticGroup, VehicleGroup
 from dcs.vehicles import AirDefence, Armor, MissilesSS, Unarmed
 
 from game.positioned import Positioned
 from game.profiling import logged_duration
 from game.scenery_group import SceneryGroup
-from game.theater.presetlocation import PresetLocation
-from game.utils import Distance, meters
 from game.theater.controlpoint import (
     Airfield,
     Carrier,
@@ -29,7 +28,8 @@ from game.theater.controlpoint import (
     Lha,
     OffMapSpawn,
 )
-from game.utils import Distance, Heading, meters
+from game.theater.presetlocation import PresetLocation
+from game.utils import Distance, meters
 
 if TYPE_CHECKING:
     from game.theater.conflicttheater import ConflictTheater
@@ -69,13 +69,13 @@ class MizCampaignLoader:
     MEDIUM_RANGE_SAM_UNIT_TYPES = {
         AirDefence.Hawk_ln.id,
         AirDefence.S_75M_Volhov.id,
-        AirDefence._5p73_s_125_ln.id,
+        AirDefence.X_5p73_s_125_ln.id,
     }
 
     SHORT_RANGE_SAM_UNIT_TYPES = {
         AirDefence.M1097_Avenger.id,
         AirDefence.Rapier_fsa_launcher.id,
-        AirDefence._2S6_Tunguska.id,
+        AirDefence.X_2S6_Tunguska.id,
         AirDefence.Strela_1_9P31.id,
     }
 
@@ -85,7 +85,7 @@ class MizCampaignLoader:
         AirDefence.ZSU_23_4_Shilka.id,
     }
 
-    EWR_UNIT_TYPE = AirDefence._1L13_EWR.id
+    EWR_UNIT_TYPE = AirDefence.X_1L13_EWR.id
 
     ARMOR_GROUP_UNIT_TYPE = Armor.M_1_Abrams.id
 
@@ -240,7 +240,11 @@ class MizCampaignLoader:
 
     @property
     def scenery(self) -> List[SceneryGroup]:
-        return SceneryGroup.from_trigger_zones(self.mission.triggers._zones)
+        return SceneryGroup.from_trigger_zones(
+            z
+            for z in self.mission.triggers._zones
+            if isinstance(z, TriggerZoneCircular)
+        )
 
     @cached_property
     def control_points(self) -> dict[UUID, ControlPoint]:
diff --git a/game/data/alic.py b/game/data/alic.py
index 9b2b3ab6..ac884085 100644
--- a/game/data/alic.py
+++ b/game/data/alic.py
@@ -5,8 +5,8 @@ from game.theater.theatergroup import TheaterUnit
 
 class AlicCodes:
     CODES = {
-        AirDefence._1L13_EWR.id: 101,
-        AirDefence._55G6_EWR.id: 102,
+        AirDefence.X_1L13_EWR.id: 101,
+        AirDefence.X_55G6_EWR.id: 102,
         AirDefence.S_300PS_40B6MD_sr.id: 103,
         AirDefence.S_300PS_64H6E_sr.id: 104,
         AirDefence.SA_11_Buk_SR_9S18M1.id: 107,
@@ -17,7 +17,7 @@ class AlicCodes:
         AirDefence.Osa_9A33_ln.id: 117,
         AirDefence.Strela_10M3.id: 118,
         AirDefence.Tor_9A331.id: 119,
-        AirDefence._2S6_Tunguska.id: 120,
+        AirDefence.X_2S6_Tunguska.id: 120,
         AirDefence.ZSU_23_4_Shilka.id: 121,
         AirDefence.P_19_s_125_sr.id: 122,
         AirDefence.Snr_s_125_tr.id: 123,
diff --git a/game/data/radar_db.py b/game/data/radar_db.py
index 7c7cc00b..cc92bcb1 100644
--- a/game/data/radar_db.py
+++ b/game/data/radar_db.py
@@ -1,31 +1,32 @@
 from dcs.ships import (
-    Forrestal,
-    PIOTR,
-    MOSCOW,
-    VINSON,
+    ALBATROS,
     CVN_71,
     CVN_72,
     CVN_73,
-    Stennis,
-    KUZNECOW,
     CV_1143_5,
-    NEUSTRASH,
-    ALBATROS,
-    REZKY,
-    MOLNIYA,
+    Forrestal,
+    KUZNECOW,
     LHA_Tarawa,
+    MOLNIYA,
+    MOSCOW,
+    NEUSTRASH,
     PERRY,
+    PIOTR,
+    REZKY,
+    Stennis,
     TICONDEROG,
     Type_052B,
     Type_052C,
     Type_054A,
     USS_Arleigh_Burke_IIa,
+    VINSON,
 )
 from dcs.vehicles import AirDefence
+
 from pydcs_extensions import highdigitsams as hds
 
 TELARS = {
-    AirDefence._2S6_Tunguska,
+    AirDefence.X_2S6_Tunguska,
     AirDefence.SA_11_Buk_LN_9A310M1,
     AirDefence.Osa_9A33_ln,
     AirDefence.Tor_9A331,
@@ -53,7 +54,7 @@ TRACK_RADARS = {
 
 LAUNCHER_TRACKER_PAIRS = {
     AirDefence.Kub_2P25_ln: AirDefence.Kub_1S91_str,
-    AirDefence._5p73_s_125_ln: AirDefence.Snr_s_125_tr,
+    AirDefence.X_5p73_s_125_ln: AirDefence.Snr_s_125_tr,
     AirDefence.S_300PS_5P85C_ln: AirDefence.S_300PS_40B6M_tr,
     AirDefence.S_300PS_5P85D_ln: AirDefence.S_300PS_40B6M_tr,
     AirDefence.Hawk_ln: AirDefence.Hawk_tr,
@@ -80,7 +81,7 @@ LAUNCHER_TRACKER_PAIRS = {
 
 UNITS_WITH_RADAR = {
     # Radars
-    AirDefence._2S6_Tunguska,
+    AirDefence.X_2S6_Tunguska,
     AirDefence.SA_11_Buk_LN_9A310M1,
     AirDefence.Osa_9A33_ln,
     AirDefence.Tor_9A331,
@@ -88,11 +89,11 @@ UNITS_WITH_RADAR = {
     AirDefence.Vulcan,
     AirDefence.Roland_ADS,
     AirDefence.ZSU_23_4_Shilka,
-    AirDefence._1L13_EWR,
+    AirDefence.X_1L13_EWR,
     AirDefence.Kub_1S91_str,
     AirDefence.S_300PS_40B6M_tr,
     AirDefence.S_300PS_40B6MD_sr,
-    AirDefence._55G6_EWR,
+    AirDefence.X_55G6_EWR,
     AirDefence.S_300PS_64H6E_sr,
     AirDefence.SA_11_Buk_SR_9S18M1,
     AirDefence.Dog_Ear_radar,
diff --git a/game/scenery_group.py b/game/scenery_group.py
index 0015ab8f..1a30b9d9 100644
--- a/game/scenery_group.py
+++ b/game/scenery_group.py
@@ -1,9 +1,11 @@
 from __future__ import annotations
-from game.theater.theatergroundobject import NAME_BY_CATEGORY
-from dcs.triggers import TriggerZone
 
 from typing import Iterable, List
 
+from dcs.triggers import TriggerZoneCircular
+
+from game.theater.theatergroundobject import NAME_BY_CATEGORY
+
 
 class SceneryGroupError(RuntimeError):
     """Error for when there are insufficient conditions to create a SceneryGroup."""
@@ -15,7 +17,10 @@ class SceneryGroup:
     """Store information about a scenery objective."""
 
     def __init__(
-        self, zone_def: TriggerZone, zones: Iterable[TriggerZone], category: str
+        self,
+        zone_def: TriggerZoneCircular,
+        zones: Iterable[TriggerZoneCircular],
+        category: str,
     ) -> None:
 
         self.zone_def = zone_def
@@ -24,7 +29,9 @@ class SceneryGroup:
         self.category = category
 
     @staticmethod
-    def from_trigger_zones(trigger_zones: Iterable[TriggerZone]) -> List[SceneryGroup]:
+    def from_trigger_zones(
+        trigger_zones: Iterable[TriggerZoneCircular],
+    ) -> List[SceneryGroup]:
         """Define scenery objectives based on their encompassing blue/red circle."""
         zone_definitions = []
         white_zones = []
@@ -79,11 +86,11 @@ class SceneryGroup:
         return scenery_groups
 
     @staticmethod
-    def is_blue(zone: TriggerZone) -> bool:
+    def is_blue(zone: TriggerZoneCircular) -> bool:
         # Blue in RGB is [0 Red], [0 Green], [1 Blue]. Ignore the fourth position: Transparency.
         return zone.color[1] == 0 and zone.color[2] == 0 and zone.color[3] == 1
 
     @staticmethod
-    def is_white(zone: TriggerZone) -> bool:
+    def is_white(zone: TriggerZoneCircular) -> bool:
         # White in RGB is [1 Red], [1 Green], [1 Blue]. Ignore the fourth position: Transparency.
         return zone.color[1] == 1 and zone.color[2] == 1 and zone.color[3] == 1
diff --git a/requirements.txt b/requirements.txt
index 9e8c68f6..d637369f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ pluggy==1.0.0
 pre-commit==2.19.0
 py==1.11.0
 pydantic==1.9.1
--e git+https://github.com/pydcs/dcs@ca682e883449164d39401750cdc1c974bc902064#egg=pydcs
+-e git+https://github.com/pydcs/dcs@99724085475bc5773ba8132d569c9daa332fc25c#egg=pydcs
 pyinstaller==5.2
 pyinstaller-hooks-contrib==2022.8
 pyparsing==3.0.9